Kaitlin Stanley, MD, and Erika Friehling, MD

A 16-year-old previously healthy young man presented to the emergency room with fatigue, headaches and pallor. He endorsed a history of black, tarry stool and early satiety for several months. His maternal family history was not significant, and paternal history was unknown. On physical exam, he was pale and was noted to have a systolic flow murmur. There was no organomegaly, and an abdominal mass was not palpable.

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